Elevating-bolt



2 Sheets-Sheet 1.

(No Model.)

7 F. PRINZ.

ELEVATING BOLT.

No. 381,848. Patented Apr. 24, 1888.

:r r r re N. PETERS, PhoXo-Lkhugnphar. Washingmn. o. c.

(No Model.) 8 2 Sheets-Sheet 2.

' P. PRINZ.

ELEVATING'BOLT. v No. 381,848. Patented Apr. 24,1888.

WWWWQ N. PETERS, Pholailflmgm'phen Wa'shing'on D. c.

UNITED STATES PATENT OFFICE.

FAUSTIN PRINZ, OF MILWAUKEE, WISCONSIN.

ELEVAT lNG-BOLT.

EaPECIPICA'I'ION forming part of Letters Patent 110,381,848, dated April24, 1888.

Application filed March 12, 1886. Serial No. 191L968. (No model.)

art to which it appertains to make and use the same.

Myinvention relates to graders or elevatingbolts adapted for gradingwheat or any other material that can be graded thereby, and has for itsobject to effect a more thorough grading or separation than heretofore;and to that end it consists in the constructions and combinations ofparts, hereinafter particularly described, and then specifically definedby the claims.

Figure 1 of the drawings is a plan view of the bolt; Fig. 2, a verticallongitudinal section through Fig. 1; Fig. 3, a cross-section throughFig. 1; Fig. 4, a longitudinal section through the bolt,showing thedirecting-board without the shaker; Fig. 5, a cross-section through thebolt constructed according to Fig. 4; Fig. 6, a plan of adirecting-board, partly broken away, showing two sets of wings, Q; Fig.7, a crosssectional view of part of the bolt, showing modified forms ofdirectingboard and screen; Fig. 8, a view of one'of the rings that bindthe bolt in cross-section; Fig. 9, a cross section through part of thegradingcylinder, showing manner of forming joint.

In the drawings, the letter A designates the casing, with conveyer B,its trough G, and inclines D beneath the bolt, all of which are of theordinary construction and therefore need not be more particularlydescribed.

Within the casing is the bolt E, composed of heads F,having bearings G journaled in the boxing or rings a in the ends of the casing, and havinga grading-surface, H, of wire-gauze, bolting-cloth, or any suitablematerial in use for the purpose. The preferred material is perforatedmetal, fitting at its ends on flanges b on the inner face'of the headsF, and secured thereto by bands I,havingangle-irons c at their ends,through which bolts d pass to clamp the bands to the flanges. Thesebands may be used at as many other points as desired to bind and stiffenthe bolt.

To one edge of the perforated grading-surface,on opposite faces thereof,there are secured by rivets or other means metal plates 8 e,form-- ing afork, in or between which fits the other edgeof the grading-surface, sothat when bolts or rivets are passed through the plates andgradingsurface a good joint is made. The heads of the bolts are formedon their peripheries with cogs f, with which mesh the gears J on theshaft K, which is journaled in boxes L, secured to the casing, and hasat one end a drive-pulley, from which motion is transmitted to the bolt,andat the other end a ratchet or cam-faced wheel, M.

While it is preferred to transmit motion to the bolt by the meansdescribed, still any other suitable means for the purpose may beemployed-=as, for instance, rollers mounted on a rotating shaft may bemade to bear against the bearings G, so as to revolve the bolt byfrictional contact. This is not illustrated because not claimed.

Within the bolt are a series of ribs or elevators, N, extendinglongitudinally of the bolt and secured by bolts f, or other means, tolugs g on the inside of heads F. These elevators are concave,(preferably of the form shown,) and are set so that a space will be leftbetween them and the inner face of the grading-surface. By thisconstruction a portion of the material is between the carriers andgradingsurface undisturbed by the carriers, which portion iscontinuously agitating or rolling, whereby the larger particles work orare brought to the top or surface of the mass and carried upward by theelevators, while the lighter or finer particles are brought to thesurface of the screen,and, being freed from so much of the largerparticles, are freer to pass through the screen. The coarser or largerparticles lifted by the elevators to the upper portion of the bolt,instead of being permitted to fall directly to the bottom of the bolt,are intercepted in their downward course-forinstance, as shown in Figs.4 and 5by a board, O,which directs the material to the opposite side ofthe bolt and against the surface thereof. The advantage of receiving thematerial from the ascending side of the bolt and directingit against thesurface of the bolt on the descending side is that the larger particlescarried away from the smaller particles by the elevators move fasterthan the bolt when they leave the board and come in contact with thesurface of the bolt on the descending side with the result of impartinga similar rolling motion as on the ascending side and with like results.Both sides of the bolt are thus brought into play in the treatment ofthe material. This directing-board may be supported, as clearlyillustrated in Figs. 5 and 7, by brackets h, connected by set-screws ito a shaft, I, passing centrally through the bolt and supported bysuitable standards outside of the casing, as shown in Fig. 4. Byloosening the set screws the brackets can be turned on the shaftso as tochange the inclination of the board and discharge the material higher orlower against the side of the grading-surface, as the exigencies of thecase may require, and partly to control the speed with which thematerial shall pass from the board.

The board has pivoted to it a series of bars or wings, Q, to which isconnected a rod, R, extending to the outside of the bolt, and by meansof which the inclination of the wings may be varied to regulate thespeed with which the material will be moved to the end of the b0 t.

Instead of a single rod, aseries of rods may be used, a portion of thewings or bars being attached to each rod, so that some of the bars maybe placed at a greater angle than the others. An additional rod is shownin Fig. 6.

I prefer to use in connection with the bolt a screen, which I designatea shaker. It is shown in Figs. 2, 3, and 7, and consists of a perforatedmetal screen, S, secured at one end to the upper portion of the inclinedboard 0, and having at its lower end a trough,j, made integral under theconstruction shown in Fig. 3 with the screen, thereby stiffening thesame, or made separate and soldered or otherwise secured thereto. Itstands above the surface of the board and receives from the carriers thematerial being treated, the smaller particles of which pass through thescreen and down onto the directing-board, while the larger particlespass into the trough and out therefrom at the tail end of the bolt. Toinsure the falling of the material onto the upper end of the screen oron the board 0, a board or shield, T, is supported, preferably, in aninclined position above the screen or board at its upper end, either bystraps k, extending from the board, and to the upper end of which theshield is connected, as shown in Figs. 4, 5, and 7, or by an upright, Z,extending up from the directingboard, and from which the shield issuspended, as shown in Fig.3. The material that falls onto theshield ischecked by it and slides down the same and passes under it and over thescreen, and thus more of the material is screened than otherwise wouldbe.

It is obvious that the screen S may have a wooden frame around itsedges, which, however, is not shown, as a frame is well known and notclaimed; and, if desired, a flange, on, may be placed as shown in Fig.7, secured to any suitable part of the screen or inclined board andextending lengthwise thereof to prevent the material from backing overthe inclined directing-board.

When the shaker is used, I prefer to support the inclineddirecting-board at opposite ends of the bolt by brackets U, as shown 1nFigs 1, 2, and 3, instead of by a shaft extendlng through the bolt, asshown in Figs. 4, 5, and 7. These brackets havejournal-pinsn at thelrends, which extend through openings in the spring-plates V, secured attheir lower ends by bolts 0,0r otherwise, to some part of the framework.These spring-plates form the standards or supports for thedirecting-board and permit a vibrating movement to be imparted to theshaker. These vibrations may be 1mparted by any well known meanssuitable for the purpose. As suitable means for the purpose I haveillustrated a lever, \V, extending horizontally from a spring or elasticconnection with one of the uprights of the frame of the machine forwardinto contact with one of the spring or elastic plates V, and thenceforward to a point where the cam-surface or ratchet-teeth of the wheel Min themtation of shaft K will strike against ltdSldG, and thus move theshaker in the direction of the length of the bolt. The rebound of thespring-plate draws the shaker back, and thus a longitudinalreciprocating movement is imparted to the shaker. This causes thematerial to move toward the tail end of the bolt. The shaker is givensome inclination to the tail end of the bolt, and the latter may havesome inclination that way.

The directing-board and shaker may be adjusted to different angles by anarm, Y, connected rigidly to the journal 12. of one of the brackets Uand held to the spring-plate V by a thumb screw and nut 19. The plate V1s formed with a series of holes, so that by removing the screw andturning the board by arm Y,and then passing the screw through the properhole, the board will be ad usted and held to the desired angle.

The grading-surface may be braced or stiffened from within the bolt by aring, Z supported by arms q, extending from the ribs or elevators N. Oneof the clamping-bands I will be passed around the gradingsurface at thispoint, so as to hold it close to the inside ring.

Abrush may be applied to the outside of the grading-surface, as iscommon in grading-cylinders, and for the same purpose of clearing thesurface.

I have described what I consider to be the best means for accomplishingthe objects in view; but it will be'understood that I do not mean toconfine myself strictly to the details shown and described,as themechanical equivalents thereof are embraced within the scope of myinvention and claims.

While I prefer to use the directing-board and the shaker, stillI wish itunderstood that either of said parts can be omitted without departingfrom the other features of my invention described. The material will befed to the reel or cylinder, and the coarse material dischargedtherefrom in the manner usual in bolting-reels.

Having fully described my invention and set forth its merits, what Iclaim is- 1. The combination, with the cylindrical grading-surface, ofthe elevators supported in proximity to the grading-surface,with a spacebetween the surface and elevators, and the directing-board supportedwithin the cylinder and inclined from the ascending to the descendingside of the cylinder, substantially as described, to receive materialfrom the elevators at the upper part of the cylinder and deliver it tothe descending side of the gradingsurface, substantially as and for thepurpose described.

2. The combination, with the cylindrical grading-surfaceand elevators,of the directingboard located within the cylinder and inclined,substantially as described, from the ascending to the descending sideofthe gradingsurface to receive material from the elevators and deliverit to the descending side of the gradingsurface, substantially asdescribed.

3. The combination, with the cylindrical grading-surface and elevators,of a directingboard located within the cylinder and inclined from theascending to the descending side thereof, for the purposes specified,and adj ustable bars or wings for regulating the fiow of material overthe said board, substantially as described.

4. The combination, with the cylindrical grading-surface and elevators,of an adjustable directing-board located within the cylinder andinclined from the ascending to the de scending side of said cylinder,substantially as described.

5. The combination, with the cylindrical grading-surface and elevators,of a vibrating directing-board located within the cylinder and inclinedfrom the ascending to the descending side of said cylinder to receivematerial from the ascending side of the gradingsurface and deliver it tothe descending side, substantially as described.

6. The combination, with the cylindrical grading-surface, of a vibratingscreen located within said cylinder and means for vibrating said screenlengthwise of said cylinder, substantially as described.

' In testimony whereof I affixmy signature in presence of two witnesses.V

' FAUSTIN PRIN Z. Witnesses:

JOHN M. GoNNoLLY, WILLIAM F. LANDWEHR.

